桂林漓江湿地植被生态学分析-(5939)

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1、Thecompositionsoffamiliesandgenerafloraaremainlydistributedinpan．tropic．3．TheWetlandvegetationinLijiangRiverwereclassifiedby5wetlandvegetationtypegroupssuchasconiferousforest，broad．1eavedforest，shrub，herbosaandshallowwaterplants，andby10wetlandvegetationtypes，

2、suchasdeciduousconiferousforest，deciduousbroad．1eaveforest，evergreenbroad·leaveforest，deciduousbroad-leaveshrub，sedge，graminoid，forb，submergedplant，leaf-floatedplantandfloatingplant，inwhichcanbecategorizedinto28formations，suchasForm．Pterocaryastenoptera，Form．

3、Adinarubella，Form．Eichhorniacrassipesect．．4．Wetlandvegetationismainlydistributedintheshallowwaterarea，floodplain，riverislandandriverbankinLijiangRiverwetland．Thesubmergedplantcommunitsaredominantintheaquaticplantsintheshallowwaterarea．Anyofvariouschieflyform．

4、玩llisnel-ianatans．form．Potamogetonwrightii，form．Hydrillaverticillata，form．Egeriadensa，form．Vallisneriaasiatica．Hygrophilouscommunitiesaremainlydistributedinthefloodplainandriverisland．TherearemainlygraminoidssuchasCynodondactylon，Panicumrepensect．，sedgessucha

5、sKyllingamonocephala，Carexnemostachysect．，forbssuchasPolygonumhydropiper,Lobeliachinensis，Hydroco砂lesibthorpioidesvar．batrachiumect．，hy擘，ophilousshrubssuchasSalixchaenomeloidesandAdinarubella．Semi．hygrophilouscommunitiesaredistributedinthezonefartheraway丘omth

6、ewater,includingfloodplain，riverislandandriverbank．Celosiaargentea，Xanthiumsibiricum，Moslascabra，Vitexnegundovar．cannab}foliQ，PterocaryastenopteraareSemi-hygrophilousplantswhichweredistributedinfloodplainandriverisland．Andthevegetationofriverbankismainlycompo

7、sedofarbor,butthearborspeciceissingle．whichbelongtoPterocaryastenoptera．Inaddition，thereareafewCinnamomumbodinierigrowingontheriverbank．5．Alongthe17samplingtransectsthedistributionofplantcommunitymainlypresentedinthefollowingecologicalseriesof“aquaticplant—hy

8、grophilousplant---semi-hygrophilousplant’’under也eimpactofsurfacewaterlevelintheLijiangRiverwetland．Itreflectstheshorewardzonationofthewetlandvegetation．Threekindsofecologicalseriesareaval